diff options
| author | Brendon Cahoon <bcahoon@codeaurora.org> | 2012-05-11 19:56:59 +0000 |
|---|---|---|
| committer | Brendon Cahoon <bcahoon@codeaurora.org> | 2012-05-11 19:56:59 +0000 |
| commit | 6d532d8860c07a3af3b66339f55ab91b4618ca7d (patch) | |
| tree | 60b50fe7ba7f82abdddb0ac1890cf60ba9319d30 /lib/Target/Hexagon/HexagonISelDAGToDAG.cpp | |
| parent | e1093e5503060b3031980dc14a141c3236108c50 (diff) | |
Hexagon constant extender support.
Patch by Jyotsna Verma.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156634 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Hexagon/HexagonISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/Hexagon/HexagonISelDAGToDAG.cpp | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp b/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp index 5499134eb9..a22555d8b6 100644 --- a/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp +++ b/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp @@ -94,6 +94,7 @@ public: SDNode *SelectConstant(SDNode *N); SDNode *SelectConstantFP(SDNode *N); SDNode *SelectAdd(SDNode *N); + bool isConstExtProfitable(SDNode *N) const; // Include the pieces autogenerated from the target description. #include "HexagonGenDAGISel.inc" @@ -312,9 +313,13 @@ SDNode *HexagonDAGToDAGISel::SelectBaseOffsetLoad(LoadSDNode *LD, DebugLoc dl) { cast<GlobalAddressSDNode>(Base)->getGlobal(); SDValue TargAddr = CurDAG->getTargetGlobalAddress(GV, dl, PointerTy, 0); - SDNode* NewBase = CurDAG->getMachineNode(Hexagon::CONST32_set, - dl, PointerTy, - TargAddr); + SDNode* NewBase; + if (Subtarget.hasV4TOps()) + NewBase = CurDAG->getMachineNode(Hexagon::TFRI_V4, + dl, PointerTy, TargAddr); + else + NewBase = CurDAG->getMachineNode(Hexagon::CONST32_set, + dl, PointerTy, TargAddr); // Figure out base + offset opcode if (LoadedVT == MVT::i64) Opcode = Hexagon::LDrid_indexed; else if (LoadedVT == MVT::i32) Opcode = Hexagon::LDriw_indexed; @@ -686,9 +691,13 @@ SDNode *HexagonDAGToDAGISel::SelectBaseOffsetStore(StoreSDNode *ST, cast<GlobalAddressSDNode>(Base)->getGlobal(); SDValue TargAddr = CurDAG->getTargetGlobalAddress(GV, dl, PointerTy, 0); - SDNode* NewBase = CurDAG->getMachineNode(Hexagon::CONST32_set, - dl, PointerTy, - TargAddr); + SDNode* NewBase; + if (Subtarget.hasV4TOps()) + NewBase = CurDAG->getMachineNode(Hexagon::TFRI_V4, + dl, PointerTy, TargAddr); + else + NewBase = CurDAG->getMachineNode(Hexagon::CONST32_set, + dl, PointerTy, TargAddr); // Figure out base + offset opcode if (StoredVT == MVT::i64) Opcode = Hexagon::STrid_indexed; @@ -1507,3 +1516,13 @@ SelectInlineAsmMemoryOperand(const SDValue &Op, char ConstraintCode, OutOps.push_back(Op1); return false; } + +bool HexagonDAGToDAGISel::isConstExtProfitable(SDNode *N) const { + unsigned UseCount = 0; + for (SDNode::use_iterator I = N->use_begin(), E = N->use_end(); I != E; ++I) { + UseCount++; + } + + return (UseCount <= 1); + +} |